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Universal covers and the GW/Kronecker correspondence
Universal covers the GW/Kronecker correspondence
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2010/12/27
The tropical vertex is an incarnation of mirror symmetry found by Gross, Pandharipande and Siebert. It can be applied to $m$-Kronecker quivers $K(m)$ (together with a result of Reineke) to compute the...
Universal covers and the GW/Kronecker correspondence
the GW/Kronecker correspondence math
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2010/11/24
The tropical vertex is an incarnation of mirror symmetry found by Gross, Pandharipande and Siebert. It can be applied to $m$-Kronecker quivers $K(m)$ (together with a result of Reineke) to compute th...
First-principles GW calculations for fullerenes, porphyrins, phtalocyanine, and other molecules of interest for organic photovoltaic applications
First-principles GW calculations for fullerenes fullerenes porphyrins phtalocyanine
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2010/11/23
We evaluate the performances of ab initio GW calculations for the ionization energies and HOMOLUMOgaps of thirteen gas phase molecules of interest for organic electronic and photovoltaic applications,...
GW方法: 基本原理, 最新进展及其在d-和f-电子体系中的应用
多体微扰理论 GW近似 准粒子电子结构 d/f-电子体系 强关联电子体系
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2010/3/9
基于格林函数的多体微扰理论提供了描述材料基态和激发态性质的一个严格理论框架. 格林函数依赖于交换关联自能, 后者满足一组复杂的被称为Hedin方程的积分微分方程. GW方法是由对自能算符根据屏蔽库仑作用做多体微扰理论展开到第一项得到, 是目前描述扩展体系准粒子电子激发性质最为准确的第一原理方法. 本文概述了GW方法的基本原理, 并对最新的理论方法进展在一个统一的框架下进行了评述. 最后, 通过对若...